Shower 32amp breaker

I'd change if it is looking distressed - brown plastic, or melted looking, but for a modest overload that is probably not going to be on long enough to do anything like that, so if it looks in good shape, and is not tripping in normal use of the shower, then changing it is one of those kick into long grass jobs  - they are designed to trip after all - but if it does it too frequently it is not a good thing  one day it will trip off and stay off. 

Generally the main thing it may do is make the neighbouring MCBs a bit more sensitive by providing a degree of pre-heat, so perhaps your 6A lights are actually protected at 5 and a bit...


edit crossed in post with above, which expresses the same ideas but more fully.

I'd change if it is looking distressed - brown plastic, or melted looking, but for a modest overload that is probably not going to be on long enough to do anything like that, so if it looks in good shape, and is not tripping in normal use of the shower, then changing it is one of those kick into long grass jobs  - they are designed to trip after all - but if it does it too frequently it is not a good thing  one day it will trip off and stay off. 

Generally the main thing it may do is make the neighbouring MCBs a bit more sensitive by providing a degree of pre-heat, so perhaps your 6A lights are actually protected at 5 and a bit...


edit crossed in post with above, which expresses the same ideas but more fully.